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Individual Calculations September 2023 |
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| Hoffmann, Piotr Total change: -77.20 | |   |
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| Poznanski Festiwal Szachowy | Poznan | POL | 2023-07-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1083 | 1505 | 2.00 | 4 | -1.71 | 20 | -34.20 | |
|  Koza, Krzysztof | | | 1023 | POL | 0.50 | 1 | -0.45 | 20 | -9.00 | |  Zak, Tomasz | | | 1120 | POL | 0.00 | 1 | -0.91 | 20 | -18.20 | | | Szczygielski, Antoni | | | 1105 * | POL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Bartkowiak, Aleksandra | | | 1084 | POL | 0.50 | 1 | -0.43 | 20 | -8.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | XXX Jubileuszowy Festiwal Szachowy w Poznaniu | Poznan | POL | 2023-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1355 | 1505 | 4.00 | 9 | -2.15 | 20 | -43.00 | |
| | Lesien, Chryzostom | | | 1032 | POL | 1.00 | 1 | 0.05 | 20 | 1.00 | | | Kowalewicz, Kacper | | | 1807 | POL | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Borkowski, Pawel | | | 1080 | POL | 0.50 | 1 | -0.43 | 20 | -8.60 | | | Siwek, Olaf | | | 1105 * | POL | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Gac-Mytych, Sara | | | 1179 | POL | 0.50 | 1 | -0.37 | 20 | -7.40 | | | Pietras, Igor | | | 1271 | POL | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Niemier, Martyna | | | 1291 | POL | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Rubinowski, Sebastian | | | 2111 | POL | 0.00 | 1 | -0.02 | 20 | -0.40 | | | Pieczewska, Jadwiga | | | 1315 | POL | 0.50 | 1 | -0.25 | 20 | -5.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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